Leahdeb ditncajst



L. DUNCAN. coucnm RAiL'WAY TIE. APPLICATION FILED JAN. 14, I916.

.Patented Aug. 22, 1916.-

# TTORNEYS WITNESSES WM LEANDER DUNCIUN, 0F BUTTE, MONTANA.

CONCRETE RAILWAY-TIE.

To all whom it may concern:

Be it known that I, LEANDER DUNCAN, a citizen of the United States, anda resident of Butte, in the county of Silver-bow; and

Among the objects of the invention is to improve the construction ofcross ties with respect to the composition of the ma n body thereof andthe means for attaching the rails thereto, the main portion of the tiesbeing made of reinforced concrete and the attaching means providing forcushions of wood or the like to deaden the noise and to increase thelife or durability of the ties.

With the foregoing and other objects in view, the invention consists inthe arrangement and combination of parts hereinafter described andclaimed, and while the invention is not restricted to the exact detailsof construction disclosed herein, still for the purpose of illustratinga practical. embodiment thereof reference is had to the accompanyingdrawings, in which like reference characters designate the same parts inthe several views, and in which Figure 1 is a plan view of one of myimproved ties with the rails secured in place thereon; Fig. 2 is avertical longitudinal section of one end of the improved tie, on thebroken line 22 of Fig. 1; Fig. 3 is a vertical transverse section on theline 33 of Fig. 2; and Fig. & is a horizontal section on the line 4:1-of Fig. 2.

One ofthe disadvantages of a reinforced concrete cross tie, as they havebeen proposed heretofore, lies in the difliculty of securing the railsthereto in a convenient and reliable manner. Furthermore, concrete ormetallic cross tieshave proved to be more or less unnecessarily noisy.By my improved construction I provide a cross tie made mainly ofconcrete, the body portion of which is shown at 10 suitably reinforcedwith metal at 11 in any approved manner, and at each end of the tie isformed or con stituted a head indicated generally at 12. The headconsists, first, of a metal shell 13 of substantially rectangular formand providing an open-topped cavity or pit with n the Specification ofLetters Patent.

l atented Aug. 22, l ifi.

bottom of which is fitted a cusnion 14 consisting of a block of wood orother suitable material constituting a deadener for noise. A pillowblock '15 of metal or some other suitable, strong, rigid material isfitted upon the upper surface of the cushion and within the upperportion of the boxlike cavity of the shell. Removable fasteners 16 arepassed upwardly through the bottom of the shell, through the cushion andthe pillow block, thereby locking the pillow block from displacementfrom the shell. The sides of the shell prevent lateral displacement ofthe pillowblock and endwise displacement thereof is prevented by the endportion of the shell and the end of the concrete portion of the tie.

lhe inner end of the shell includes upper and lower ears 1'? and 18which embrace the enlarged end portion of the body 10 and through whichend ears a plurality of bolts 19 or their equivalent are passed. Theshell may be made of cast iron or other suitable metal ofsuficient-strength-and rigidity for the purposes of the invention. Theconcrete portions of the ties being made of do tinite lengthand theshells being formed likewise of definite size and shape, the matter ofapplying the rails thereto is very much expedited.

Each pillow block comprises an upwardly projecting rail seat 20, atopposite ends of which are arranged rounded shoulders 21 spaced fromeach other according to the width of the base flange of the rail R. Thecurvature of the shoulders is so arranged that the ties may be readilyaccommodated to curves in the road or other conditions which may requirea slight oblique angular arrangement of the rail with respect to thetie. A pair of lugs 22 project upwardly from the ends of the rail seatand above the shoulders. Said lugs are provided with transverse holesfor fastening means 23 serving to secure clamping blocks 24. 50 theinner vertical faces of the lugs and snugly against the upper surface ofthe base flange, whereby the rail is locked easily and posi-' tivelyfrom displacement without the neces sity for using spikes or the like.Since the ties are made of uniform length and the dis tance betweencenters of the rail seats is in variable, the rails will always bepositioned at a definite distance from each other. The pillow blockswith the lugs and. shoulders rounded as indicated, and

constituting parts of the same make a firm, reliable means for lockingthe rails to the ties.

I claim 1. The herein described railway tie comprising a body portion ofreinforced con crete having an enlargement at each end, a rigid metalrectangular shell detachably secured to each enlargement, said shellconstituting an open-topped box, a cushion block fitted in the lowerportion of said box, a pillow block fitted upon the cushion block withinthe upper portion of the box, means locking the pillow block and cushionblock in the shell, and means to secure a rail upon the pillow block.

2. In a railway tie, the combination of a einforced concrete bodystructure, a metal shell detachablysecured to each end of the body, saidshell comprising an open-topped box, a pillow block supported andsecured in said box, said pillow block having on its upper surface arail seat, a pair of lateral shoulders adjacent the ends of the seat andadapted to engage the side edges of the base flange of the rail, saidshoulders being a pair of clamping blocks bearing upon the upper surfaceof the base flange to hold the rail from tilt- Oopies of this patent maybe obtained for live cents each, by addressing the ing or upwarddisplacement from between said shoulders.

3. The combination in a railway tie, of a reinforced concrete bodyhaving an enlargement at each end, a shell for each end of the body andhaving upper and lower ears embracing the adjacent enlargement,fasteners securing the shell ears to the enlarged end of the body, themain portion of the shell constituting an open-topped rectangular box, acushion fitted in the bottom of the box, a rigid pillow block supportedupon the cushion, fastening means passed upwardly through the bottom ofthe box, through the cushion and pillow block, securing these partstogether, said pillow block \having a pair of upwardly projecting lugs,that portion of the pillow block between the lugs constituting a railseat, said lugs having transverse holes therethrough, a pair of clampingblocks fitted to the inner faces of the lugs and adapted to bind uponthe top of the rail base, and removable fasteners securing the clampingblocks to the lugs, substantially as set'forth.

LEANDER DUNCAN. Witnesses:

W. T. BLEICK, CHAs. J. ANDRIEUX.

Commissioner of Patents.

Washington, D. C."

